3.2.2.1 Abbreviated terms
| FSV | Fail-safe substitute Values | |
| HMI | Human-machine interface | |
| ID | Identifier | |
| LSB | Least significant bit | |
| MNR | MonitoringNumber | |
| MSB | Most significant bit | |
| OA | Operator Acknowledgment | |
| OPC UA PI | OPC UA Platform Interface | |
| PI | Platform Interface | |
| PV | Process Values | |
| SAPI | Safety Application Program Interface | |
| SFRT | Safety Function Response Time | |
| SPI | Safety Parameter Interface | |
| STrailer | Safety Trailer | |
| TRA | threat and risk analysis |